#include <fstream>

using namespace std;

ifstream cin("chatnoir.in");
ofstream cout("chatnoir.out");

int main()
{
    int t,n,m,x,y;
    cin>>t;

    int da=0;
    for(int pas=1;pas<=t;pas++)
    {
        cin>>n>>m>>x>>y;
        da=0;
    if(x<=5) da=1;
    if(y<=5) da=1;
    if(m-y+1<=5) da=1;
    if(n-x+1<=5) da=1;

        if(da==1) cout<<"DA\n";
        else cout<<"NU\n";
    }
    return 0;
}